Banshee.exe crashed with SIGABRT in __kernel_vsyscall()

[typo]

Binary package hint: banshee

I enabled the the coverflow and the mirage extension in Banshee. I closes Banshee in order to restart it, because I couldn't see any coverfly (mirage started analysing my music immidiatly as I expected). The following try to start Banshee resulted into an apport dialog.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: banshee 2.0.0-2ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
Uname: Linux 2.6.38-8-generic-pae i686
Architecture: i386
Date: Wed Apr 20 20:55:58 2011
ExecutablePath: /usr/lib/banshee/Banshee.exe
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
InterpreterPath: /usr/bin/mono
ProcCmdline: banshee /usr/lib/banshee/Banshee.exe --redirect-log --play-enqueued
ProcEnviron:
 SHELL=/bin/bash
 LANG=de_DE.UTF-8
 LANGUAGE=de:en
Signal: 6
SourcePackage: banshee
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 g_assertion_message () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/i386-linux-gnu/libglib-2.0.so.0
Title: Banshee.exe crashed with SIGABRT in __kernel_vsyscall()
UpgradeStatus: Upgraded to natty on 2011-04-17 (3 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[typo (gnomeuser8)]

Is it just a duplicate of the private bug #749305?

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #748711, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[typo (gnomeuser8)]

The bug is easy to reproduce:
1. install the coverflow extension
2. enable it in banshee
3. restart banshee

Then you will get the following error messages:
[Info 21:27:06.287] Running Banshee 2.0.0: [Ubuntu Natty (development branch) (linux-gnu, i686) @ 2011-04-18 16:21:33 UTC]
[Info 21:27:07.326] Updating web proxy from GConf
failed to create drawable

(Banshee:13194): Clutter-CRITICAL **: Unable to initialize Clutter: Unable to select the newly created GLX context
[Warn 21:27:07.370] Caught an exception - System.NotSupportedException: Unable to initialize GtkClutter (in `Banshee.ClutterFlow')
  at Banshee.ClutterFlow.ClutterFlowManager.Init () [0x00000] in <filename unknown>:0
  at Banshee.ClutterFlow.ClutterFlowService..ctor () [0x00000] in <filename unknown>:0
  at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
[Warn 21:27:07.370] Extension `/Banshee/ServiceManager/Service/__nid_13' not started: Exception has been thrown by the target of an invocation.
**
Cogl-glx:ERROR:./winsys/cogl-xlib.c:87:_cogl_xlib_set_display: assertion failed: (_cogl_xlib_display == NULL)
Stacktrace:

  at (wrapper managed-to-native) ClutterFlow.ClutterHelper.gtk_clutter_init (intptr,intptr) <0x00004>
  at (wrapper managed-to-native) ClutterFlow.ClutterHelper.gtk_clutter_init (intptr,intptr) <0x00004>
  at Banshee.ClutterFlow.ClutterFlowManager.Init () <0x00035>
  at Banshee.ClutterFlow.ClutterFlowService..ctor () <0x0000a>
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) <0x00040>
  at (wrapper managed-to-native) System.Reflection.MonoCMethod.InternalInvoke (object,object[],System.Exception&) <0x00004>
  at (wrapper managed-to-native) System.Reflection.MonoCMethod.InternalInvoke (object,object[],System.Exception&) <0x00004>
  at System.Reflection.MonoCMethod.Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) <0x0018b>
  at System.Reflection.MonoCMethod.Invoke (System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) <0x00027>
  at System.Reflection.ConstructorInfo.Invoke (object[]) <0x00042>
  at System.Activator.CreateInstance (System.Type,bool) <0x00184>
  at System.Activator.CreateInstance (System.Type) <0x00012>
  at Mono.Addins.TypeExtensionNode.CreateInstance () <0x0001c>
  at Mono.Addins.InstanceExtensionNode.CreateInstance (System.Type) <0x00015>
  at Banshee.ServiceStack.ServiceManager.StartExtension (Mono.Addins.TypeExtensionNode) <0x0006e>
  at Banshee.ServiceStack.ServiceManager.OnExtensionChanged (object,Mono.Addins.ExtensionNodeEventArgs) <0x0007b>
  at Mono.Addins.ExtensionNode.add_ExtensionNodeChanged (Mono.Addins.ExtensionNodeEventHandler) <0x00109>
  at Mono.Addins.ExtensionContext.AddExtensionNodeHandler (string,Mono.Addins.ExtensionNodeEventHandler) <0x0002e>
  at Mono.Addins.AddinManager.AddExtensionNodeHa...